08:17 23-03-2026

Mercedes-Benz advances solid-state battery tech with new anode design

Mercedes-Benz patents innovative anode design for solid-state batteries, enhancing efficiency and safety. Learn about progress, competition, and real-world testing.

Mercedes-Benz is taking another step forward in developing solid-state batteries, a technology seen as crucial for the future of electric vehicles. The company's new patent outlines an innovative anode design that could enhance battery efficiency and safety.

New Battery Construction

The development centers on a multi-layered anode made from ultra-thin materials. The first layer is formed from metals like aluminum or magnesium, while the second serves a protective function and reduces element degradation. Each layer is just a few nanometers thick, which helps increase energy density.

This architecture could be used in so-called 'anode-free' batteries, where the amount of active material is minimized. That paves the way for lighter and more compact batteries without sacrificing performance.

Competition Intensifies

Despite this progress, Mercedes still lags behind competitors in terms of development volume. Toyota and Nissan have already amassed hundreds and thousands of patents and plan to start mass production of solid-state batteries around 2027.

Meanwhile, the technology itself is attracting more manufacturers. It promises faster charging, increased range, and higher safety levels by eliminating liquid electrolytes.

Potential and Real-World Testing

The company is already testing prototypes. One EQS electric vehicle equipped with an experimental battery managed to cover about 1,200 km without recharging, far exceeding the range of current production models. This showcases the technology's potential in real-world conditions.

However, the main challenge remains unchanged: moving from lab development to mass production. This stage will determine who first brings solid-state batteries to market and can reshape the rules in the electric vehicle segment.